the new cnn poll of polls shows romney with a two-point lead nationally over president barack obama, and here's the latest polling out of ohio. it shows president obama with a three-point lead. >>> as president barack obama has visited ohio more than 20 times and most of those stops have been this year, mitt romney and paul ryan are there again this weekend as john shows us it is the battleground of the battleground states. and ohio's working moms could be the key to victory. >> the lights still on past midnight. another 20-hour day for jessica. >> i'm a single mom of a 5-year-old little girl who is fantastic. i work full time. and go to school full time. so my day usually starts around 4:45 in the morning, and ends close to 1:00 a.m. you do what you have to do in this economy. >> her vote, she said, is for jillian's future. she was leaning mitt romney until his own words pushed her back to undecided. >> about the 47%, and i can't worry about them. how can you put your faith and trust in a candidate that doesn't care about everybody? >> to win ohio and other key battlegrounds, romney